add: 4abc-3bc +6ac,-7abc -bc+9ac,3abc+2bc
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Answer:
=(4abc-3bc+6ac)+(-7abc-bc+9ac)+(3abc+2bc)
=4abc-3bc+6ac-7abc-bc+9ac+3abc+2bc
=4abc-7abc+3abc-3bc-bc+2bc+6ac+9ac
=0-2bc+15ac
=-2bc+15ac
this is the answer, I hope it helps....
Answered by
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2bc+15ac
I hope I will help you
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